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postgresqlHow do I use PostgreSQL operators in my software development project?


PostgreSQL operators are used to perform operations on data stored in a PostgreSQL database. They are used to filter, modify, join, and aggregate data in a query.

For example, the following code block uses the PostgreSQL AND operator to retrieve data from a table:

SELECT * FROM table_name
WHERE column1 = 'value1'
AND column2 = 'value2';

The output of this query would be all the rows from the table where both column1 and column2 have the values value1 and value2 respectively.

Other PostgreSQL operators include:

  • OR: Used to combine two or more conditions.
  • LIKE: Used to match a string pattern.
  • IN: Used to check if a value is present in a list.
  • BETWEEN: Used to check if a value is between two other values.
  • IS NULL: Used to check if a value is NULL.

For more information on PostgreSQL operators, please refer to the PostgreSQL documentation.

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